Stoneworking-lathe.



s'roNEWoRKINGLMHRi APPLIoATmN 111mm JAN; zg. 1909i.

Patented May v1f?, '1910. Y

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W. F. yMEYERS.

STONBWORKINQLATHF. V APLIuATIoniFILED 3111.22. 1909.

i' Patented May 17,1910. v

lAthan has hitherto been possible.

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To all whom it may concern.:

Be it known that 1,.-WILLARD F. Mur-Ens, a citizen of the United States, residingat Long Island City, borough of Queens, city 5 'of New York, in the county of Queens and State of New Yorl ,have invented a certain new and useful Improvementin Stoneworlring-Lathes, of whichthe following is a speciiication, reference being had therein to the accompanying drawings, forming part thereof.

My invention relates to lathes for operating on stone and the general object of my invention is to combine in a single machine means for doing a greater variety of work For instance, a lathe constructed' in accordance with the present invention is adapted for turning, fluting and facing the work and for forming moldings; and more particular objects of my invention are to provide means for tilting certain kinds of work and to hold the work at a desired angle and height, and 'a further object of iny invention is to pro vide a tool-supporting carriage which is ro '25 tatively adjustable.

My invention includes means for tilting aiid adjusting the height of a work-supporting table and means foradjusting the tool carriage, the work-supporting table being detachably secured to the bed of the lathe.

My invention also includes several details of construction and combinations of parts as will hereinafter appear.

I shall nowk describe my-invention with reference to the accompanying drawings and shall thereafter claims. u

Figure A1 is a lan view of my improved lathe as equippe.- for handling work of cirpoint out .my invention in 4:0 cular cross-section. Fig. 2 is 'an elevation on a slightly enlarged scale of what is shown in Fig. 1 with certain parts omitted. Fig. 3 is an enlarged section on a `lane indicated by line of section 3 3 of Fig. 1 as viewed vfrom the left. Fig. 4 is an enlarged plan Vieyv of the tool carria @fe andl its adjuncts with the motor and toocarrying arborv re`- moved and portions broken away. Fig. 5 is' an elevation of the work-supporting table and its adjuncts shown as applied' to the construction illustrated in the above named figures and is for handling flat or non-rotating Work. Fig.. 6 is an enlarged cross-section on a plane indicated by line of section 6 8 of Fig. 5 as viewed from the ri ht.

Fig. 7 is a plan view' in section on a p ane Specincation of Letters Patent. application sied January a2, i909. seria'. No. 473,699.

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indicated by line of` section 7-7 of Fig. 6 with parts omitted at the ends to save space. Fig. '8 is a cross-section lon a plane 4indicated by line of section 6-8 in Fig. 5 as viewed fromV the left and includes also a portion of the tool carrier and its adjuncts and a piece of flat work supported on the table.

ln the embodiment of my invention illustrated in the drawings, the usual head stock 9 and tail stock 10 are supported on a frame or bed formedl intermediateof its ends of I-beanis 11. The head stock 9 has ournaled therein'a Work-rotating spindle or live center 12, and the tail stock 10 carries aworlrsupporting spindle or dead center 13 adjustable by a hand wheel 14. rllhe tail stock 10 is adjustable along the bed pieces 11 to and from the head stock 9 and 'is shown as held in placeby a screw-retained clamping Aplate. 15. When the work is to b e rotated, it

is held between the two spindleslor cen- For handling flat or non-rotatable work, a'

worksupporting table 22 (Figs. 5, 6, 7 and 8) is provided and is arranged to be both tilted or rocked transversely, and raised and lowered, so as to hold the work at the proper height and angle to be operated on by a-tool carried by the tool carriage. The table 22 is supported on columns 23, shown fas two in number, telescoping 'into sockets v211, shown as formed integral with arcuate bottom pieces or rockers 2,5. The rockers 25 rest in'a correspondingly formed base piece 26, which, 1n turn, is supported on the bed aor pieces 11 and is shown as detachably secured thereto by bolts passingwulikrough the flanges` of the bed 'pieces 11. en the work-supporting table is used, the tail stock 10 is run back toward the outer end of the bed 11 so as to be out of the way'.

The means for raising and lowering the table 22 comprise lifting screws 27, one adjacent to each column 23, engaging nuts 28 on the rockers 25 and journaled in supporting brackets 29 depending from the table 22 yand in bearings 30 also carried-onjthe tablel j 22. The lifting screws 27 are arranged to be rotated by a connecting shaft 31 journaled in the brackets 29 and geared t'o the screws 27 as-shown in the drawings, the pitch and direction 'of screwthreads being 'Such as to vertically adjust the table22withauniform ,and parallel movement. The connecting,

- of the sockets 24 and adapted to be drawn 7 shaft 31 is arranged to be actuated by a n transverse shaft 32 geared to the connectin together by bolts as shown.

The means for transversely lrocking or tilting the table 22 comprise spur plnions 35. lixed on a longitudinal shaft 36 and engag-v Aing arcuate racks shown as' formed ,on the under sides of the rockersz 26. The longitdinal lshaft 36 is supported in bearings-on the base 26 and carries -at one end a worm.

vwheel 37, which is actuated by aworm 38 carried by'a cross-shaft 39 journaled 1n bearings on the base v26 andI provided withva hand Wheel 40. It is evidentthat when the hand wheel 40 is rotated, the curvilinear -.surfaces of the-'rockers 25 will' be made to .travel along they correspondlng .curvilinear surface ofthebase 26 soas to tilt the rockers 25 laterally and thereby tilt'the worksupporting table 22 transversely ata correj sponding angle. When the work table 22 has in this-manner been adjustedto the VProper 'angle sition bybolts 41l passing through trans` -supported/ thereon a rotary tool-carrying M it'may be firmly secured ingpov verse slots in the rockers 25 into the base 26 as shown in Fig.- 7.l

A -tool carriage 42 `is provided and has spindle or tool arbor 43 shown as carrying a rotary rinding` tool 44, which may be of suitablefa rasive material; The tool spindle or arbor 43 is journaled in bearings'45,

shown as boltedto the carriage 42,.,and the grinding tool 44 is of a kind adapted to rouce'flutings on a column as'indicate in dotted lines in Fig. 3 and in Fig. 1 at the .arbor or spindle 48 carr according tothe right. It should be' noted that different shafts or tool spindles may be substituted for the "shaft 43", these different shafts being adaptedv for carr lng different kinds'of tools ldsifl'erentkinds of Work to be done. For example, in Fig. 8 a longer shaft 46 is shown as journaled in the bearings 45 on the tool 4carriage 42 and carrying' a. grinder or molding wheel 47 adapted for orming a molding as indicated.` At the left of Fig. 1 is indicated in dotted lines another ing gro'oving wheels 49, shown as a gang o three, for roughiug with dovetail out the work as indicated, the ridges between the grooves being conveniently removable by knocking off with a -hammer or vother suitable manual tool. The arbor 48 is supportedon 'the carriage 42, also shown'in ott/ ed lines, and as rotatively adjusted through an angle of 90 from the position shown at the right 'of Fig. 1, so as tobring thegrooving wheels 49 into properpositionrelatively to the work as indicated. A facing'wheel 50,- indicated in dotted lines at the left of the grooving wheels 49, may be substituted for the grooving wheels 49 to give a smooth sur- :face tothe work, which is indicated as a column and is adaptedto be rotated by the live spindle/12.l The tools carried by the tool carriage 42 .maybe rotated by an electricl m'otor 51 supported on the carriage 42 and shown'as by a belt 52.

The means forpermitting rotative adjustment ofthe tooljcarriage 42 include a carriage'support 53, on which the carriage 42 is rotatively mounted, the support 53 being provided with a boss, over Wlnch fits a cir cularllange on the carriage 42, as shown in the drawings, and the tool carriage 42 may be retained in any desired angular position by set screws 54 passing through the ange of. the tool carriage and impinging against the boss of the carriage support 53.

Means are provided foradjusting the tool geared to the tool spindle 43 tool to, and from the work kand the means shown comprise -a slide 55 on which is jour-V naled an adjusting 'screw 56 havingscrew- 'carriage 42 transversely so as to adjust the threaded` enga ement with the carriage support 53 and s own as squared at its outer end to receive a key or crank to rotate the screw. The carriage support 53 is provided ibs adapted to engage and slide `in dovetai ways on the slide 55, as best seen in Fig. 2.

eans are provided for feeding the tool carriage 42 together lwith the tool carried t thereby transversely, independently of the adjusting means just described. The slide 55 is Iprovided with dovetail gibs en aging and s iding in corresponding dovetail ways formedon -a base 57. The slide 55 is prof vided with a bracket 58 shown as carrying rollers 63 which engage opposite sides of a stationary feed rail 59 shown asadjustably held between oppositely directed adjusting` screws 60 in a trough 61 secured on a bed 62. The feed rail 59 is slightly flexible andby manipulating the screws 60 may be bent so f as to give-different curves and with portions lying at different angles so that the tool carriage 42 is fed transversely by the rollers 63, guiding the slide 55, as the base 57 toether With the ongitudinally of the Work, and the transverse feed of the tool therefore being subject to the longitudinal feed movement. By this transverse feed the work may be given the arts carried thereby is fed emma screw 64 journaled in the bed 62 andv also.

journaled in an independent bearing 65. rIhe feed screw 64 is actuated from a short parallel shaft 66 journaled at its ends in posts 67 and carrying a spur pinion 68 which engages with a spur gear 69 fixed on the feed screw- 64. The shortshaft 66 has fixed thereon a cone pulley 70, which is connected by a belt 72 with a reversely arranged cone' pulley 71 carried by the live spindle 12. If 1t is desired to actuate the live spindle 12 without actuating the feed screw 64, as, for example, in cutting the annular grooves in dicated atthe left of Fig. 1, the belt 72 may be shipped from the pulleys 70 and 71. When it is desired to actuate the feed screw 64 without continuously actuating the live spindle 12, as, for example, in forming the 4lutings indicated at the right of Fig. 1, then thefeed screw 64 is driven directly from .the main shaft 16 by belts 7 3 and 74, passing over a long pulley 75 carried by the main shaft 16 and adapted to engage a screw actuating pulley 76 fixed on the correspond, ing end of the screw 64. The belt 74 is crossed for driving the screw 64 in an opposite direction to the belt 73 and either o f these belts may be engaged with the screwactuating pulley 76 at will, and when it is not desired to drive the feed screw 64 di- Vrectly from the main shaft 16 by means of the belts 73. and 74, these belts are both shipped respectively upon loosepulleys 77 and 8, as seen in Fig. 1. It is understood, of course, that when the carriage 42 is to be fed longitudinally of the work without rotating the work, the clutch 20 is actuated to disconnect the main shaft 16 from the live `spindle 12.

It is evident from the above description that in the lathe of this invention facilities are provided 'for doin a much greater variety of work than can e accomplished with. the stone working lathes commonly used.

It is obvious that variousmodifications may be made in the construction shown andV above particularly described within the principle and scope of my invention.

I claim: Y 1. A. stone-working lathe comprisin a removable tilting work-suporting tab e detachably secured to the bed of the lathe, a tool-supporting carria e, means for feedin the carriage relative y` to the table, an means for adjusting the carriage relatively to the table.l

2. A stone-workinf lathe comprising a removable tilting wor support-ing table detachably secured to the bed of the lathe, a toolesupporting carriage, and means for feeding the carria e relatively to the table.

In testimony W ereof I have affixed my signature in presence of two witnesses.

, WILLARD F. MEYERS., Witnesses:

BERNARD COWEN, J. M. WALSH. 

